Grendel is a descendant of the Biblical Cain, the world’s first murderer that killed his brother Abel over God choosing his offering over his brothers. Originally appearing in the epic poem Beowolf. He is considered evil and cursed by God to never be happy.
The interesting thing about Grendel tho is how his actual description is actually debated since in the original poem he isn’t described really tho he is thought to be human-like. Since than Grendel has appeared in other stories, video games and even movies. Grendel is proof that sometimes you can create something and never know how far it will go. Best wishes and may the gaming gods bring you glory.